Question

powerwashofva

powerwashofva

New member
Russ,

I have a 20 HP Honda, 3500 PSI, 4.7 GPM, Tuff machine with a 220 water tank. I was wondering, can I make it into a 8 GPM machine and if so how?

Thanks,

PHIL
 
Let me check my clarevoyance skills. I predict Russ will say " buy a bigger pump". Although by my calculations you can only have a 3000psi at around 7.3 gpms, or 8 gpm at around 2750psi.
 
Larry B said:
Let me check my clarevoyance skills. I predict Russ will say " buy a bigger pump". Although by my calculations you can only have a 3000psi at around 7.3 gpms, or 8 gpm at around 2750psi.
Click to expand...

Larry, you got a crystal ball? LOL. Actually, 20 hp is only good for 2500 psi at 8 gpm. If your Tuff has a 12 volt burner, you'll never come close to heating 8 gpm to 200 degrees. Even with a 120 volt, you may not have enough coil to efficiently heat that much water, but by upsizing the burner nozzle you may come close. So....new pump, maybe a new pulley and belts if the new pump doesn't spin at the same speed as the old one, burner work, new pressure nozzles....yeah, it can be done.
 
Ok thanks-- My equiptment isn't at this location. I winterized it and brought it down to my river house for storage. I don't have the model # here but will get it this weekend. I know it is a legency pump. I never heard of them before owning this equiptment.

I purchased it on e-bay in Indiana all set up over a year ago wih 49 hrs on it for $4000.00. It was all set up on trailer & basically ready to go. I put a downstream injector on and run the water back to the tank to keep the pump cool.

Is Legency really another type pump?

Thanks,

PHIL
 
This is why he is much better at it. I didn't even think of the hot water unit.
I was curious as to your formula for figuring h.p., gpm's etc..
I use: psi X gpm = ? / 1100 = hp required. I know they are different #'s for electric as well. Just curious whether I have incorrect numbers or not?
 
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